5921 has 4 divisors (see below), whose sum is σ = 6144. Its totient is φ = 5700.

The previous prime is 5903. The next prime is 5923. The reversal of 5921 is 1295.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5921 - 2⁶ = 5857 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 5921.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 5921.

It is not an unprimeable number, because it can be changed into a prime (5923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 126.

It is an arithmetic number, because the mean of its divisors is an integer number (1536).

It is an amenable number.

5921 is a deficient number, since it is larger than the sum of its proper divisors (223).

5921 is a wasteful number, since it uses less digits than its factorization.

5921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its digits is 90, while the sum is 17.

The square root of 5921 is about 76.9480344128. The cubic root of 5921 is about 18.0911019214.

The spelling of 5921 in words is "five thousand, nine hundred twenty-one".